XH3/XH4/XH2 Half-pitch Connectors Series 1.27-mm Contact Pitch Greatly Contributing to High-density Mounting of Electronic Components and Miniaturization of Electronic Devices Stacking heights supported in the range 5 to 20 mm at 1-mm increments. Engagement Leaf contact structure ensures high resistance to twisting force and Stacking Connections smooth connection and disconnection. XH2/XH3: Au/Pd-plated contacts with an engagement length of 3.1 mm Stacking Height 12 mm 13 mm 14 mm 15 mm 16 mm ensure high contact reliability. Snap-on terminal for easy connection to the PCB. Housing with standoff construction for improved soldering quality and easier cleaning (except 1 and 2-mm increment models). XH2/XH3/XH4 DIP model: Approved by EN, IEC, UL, and CSA standards. Engagement Product lineup includes fine-fit models that are mounted to PCBs with ease with no soldering. Stacking Examples Stacking Height 17 mm 18 mm 19 mm 20 mm DIP Models 20 mm Engagement 11 mm XH3 Stacking Connections (Straight Terminal) 12 mm Stacking Height 5 mm 6 mm 7 mm 8 mm XH3 (with no XH4A finger ends) 5 mm XH3 Engagement (with no finger ends) XH2 (with finger ends) Stacking Height 9 mm 10 mm 11 mm 9 mm Engagement XH2 (with finger ends) 5 mm Vertical/Horizontal/Stacking Vertical (Standard) (See note.) Vertical (Reverse) Horizontal XH4A SMT Terminal SMT Model XH3B- 2-A Stacking Connections (Surface Mount Terminal) XH3B- 42-A XH3A- 42-A XH3A- 42-A Socket Socket Plug Plug Stacking Height 5 mm 6 mm 7 mm 8 mm 9 mm XH3A- 41 XH3B- 41 Plug Socket Engagement 11 12XH3/XH4/XH2 Half-pitch Connectors Series XH3 Half-pitch Connectors (Board-to-Board Connection) Connection Examples Plugs Multi-tier Stacking of Fine-fit Models Plug with Straight terminal Plug with Straight terminal Plug with Right angle terminal XH3A- 41 (models with stacking height XH3A- 42-A XH3A- 41-A adjustable in 2 or 4-mm increments) XH3A- 41-2A XH3A- 41-4A Shape 20,30,40,50,60,68,80,100,120 20,30,40,50,60,68,80,100,120 30,40,50,60,68,80,100 Number of contacts Fine Fit The term fine fit (generally known as press fit ) refers to the Sockets technique where the connector terminal are pressed into the Socket with Straight terminal Socket with Straight terminal Socket with Right angle terminal through holes of the PCB to connect the PCB and connector electrically and mechanically with the spring pressure of the XH3B- 41 (models with stacking height adjustable (Provided with Lock Terminal) terminal. XH3B- 41-A in 1, 3, or 4-mm increments) XH3B- 42-A The connector is connected with no solder, eliminating the XH3B- 41-1A soldering stage usually required with connectors. Furthermore XH3B- 41-3A the PCB is free of thermal load or flux, thus contributing to cost XH3B- 41-4A Shape reductions and improvements in contact reliability. Engagement Stacking Fine-fit Plain Models with Straight Terminal Number of contacts 20,30,40,50,60,68,80,100,120 20,30,40,50,60,68,80,100,120 30,40,50,60,68,80,100 XH4 Half-pitch Connectors (Low-profile Stacking Connection) Half-pitch Connector with Half-pitch Connector with Straight terminal Half-pitch Connector with SMT Straight terminal (models other than standard models with stacking (models other than standard models with stacking XH4A- 31 height adjustable in 1, 2, or 3-mm increments) height adjustable in 1 or 2-mm increments) XH4A- 31-A XH4A- 35-A XH4A- 31-1A XH4A- 35-1A XH4A- 31-2A XH4A- 35-2A Shape XH4A- 31-3A Number of contacts 40,50,60,80,100 40,50,60,80,100 40,50,60,80,100 Ordering Information XH3 Half-pitch Connectors (Fine-fit and Stacking Connection) Socket (Backplane Model) Housing (Backplane Model) Set model XH3B-013P-D32 XH3C-0112 XH3B-013P-D32-C Shape 100 100 100 Number of contacts Connector with socket and Cover for short terminal Set model short terminal XH3S-0111 XH3B-013P-D5F-S XH3B-013P-D5F Shape 100 100 100 Number of contacts 13 14